body {
    font-family: Arial, sans - serif;
    background-image: linear-gradient(to right, #fddb92 0%, #d1fdff 100%);
    margin: 0;
    box-sizing: border-box;
    padding: 0;
    min-height: 100vh;

}
h2{
    margin: 0px;
    
}
* {
    list-style: none;
}

.user {
    background-color: #ffffff;
    box-sizing: border-box;
    padding: 1vh;
    position: relative;
    height: 14vh;
    top: 5vh;
    border-radius: 5px;
    left: 4vw;
    width: 20vw;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.topicBox {
    position: relative;
    border-radius: 5px;
    top: 8vh;
    width: 91vw;
    left: 4vw;
    height: 65vh;
    background-color: #ffffff;
}

.title {
    position: relative;
    text-align: center;
    line-height: 5vh;
    top: 1vh;
    left: 1vh;
    height: 5vh;
    width: 14vw;
    background-color: #ece7e7;
}

.topicContent {
    position: relative;
    background-color: #ece7e7;
    padding: 1vh;
    top: 2vh;
    left: 1vh;
    width: 89vw;
    /* border: 2px solid black; */
    height: 55vh;
}


.selectItem {
    top:10vh ;
    position: relative;
    margin: 0 ;
    width: 91vw;
    height: 4vh;
    /* background-color: aqua; */
    display: flex;
    padding: 0;
    left: 4vw;
}
.selectItem  li{
    margin-left: 1vw;
    display: flex;
    font-size: 1.5vw;
    background-color: #ffffff;
    justify-content: center;
    flex-grow: 1;
    height: 8vh;
    align-items: center;
    cursor: pointer;
}
.selectItem  li:hover {
    transform: translateY(-10px);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    color:#fddb92 ;
}
.selectItem li:nth-child(4) {
    margin-right: 0px;
}
.selectItem  li:nth-child(1) {
    margin-left: 0px;
}

@media (max-width: 768px) {
    .user {
        width: 90vw; /* 增大宽度 */
        font-size: 1.5rem; /* 增大字体大小 */
        top: 3vh;
    }
    h2 {
        font-size: larger;

    }

    .topicBox {
        top: 5vh;
        width: 93vw; /* 增大宽度 */
        height: 60vh; /* 调整高度 */
    }

    .title {
        width: 20vw; /* 增大宽度 */
        font-size: 1.2rem; /* 增大字体大小 */
    }

    .topicContent {
        width: 84vw; /* 增大宽度 */
        height: 50vh; /* 调整高度 */
        font-size: 1.2rem; /* 增大字体大小 */
    }

    .selectItem {
        height: 10vh; /* 增加选项区域高度 */
    }

    .selectItem li {
        font-size: 2vh; /* 增大字体大小 */
        height: 12vh; /* 增加选项按钮高度 */
    }

    .selectItem li:hover {
        transform: translateY(-15px); /* 增大悬停效果 */
    }
}